Propionate Zeolite 2 Flock
The total genomic DNA was extracted using the DNeasy Blood and Tissue kit (Qiagen) and the 16S rRNA gene sequencing was performed as described by Mller et al., 2016 (54) using the primers 515F (5-GTGBCAGCMGCCGCGGTAA-3) and 805R (GGACTACHVGGGTWTCTAAT) (55)